Code of Ethics _Sr Financial Officers Revised December 2023 Code of Ethics Applicable to Senior Financial Officers Application and Standards of this Code of Ethics This Code of Ethics applies to Avient’s Chief Executive Officer, Chief Financial Officer, and Corporate Controller. In addition to their responsibilities under this Code of Ethics, these officers must comply with Avient’s Code of Conduct.

ABS Quality Evaluations This is to certify that the Quality Management System of: Avient Corporation 4921 I D A Park Drive Lockport, NY 14094 U.S.A. IATF 16949:2016 The Quality Management System is applicable to: Certificate No: 58976 Effective Date: 08 February 2019 Expiration Date: 09 August 2022 Revision Date: 17 November 2020 IATF No: 0349837 Dominic Townsend, President DESIGN AND MANUFACTURE OF THERMOPLASTIC COMPOUNDS (WITH ADDITIONAL FACILITIES LISTED ON ATTACHED ANNEX) Certificate Of Conformance has been assessed by ABS Quality Evaluations, Inc. and found to be in conformance with the requirements set forth by: Page 2 of 2 ABS Quality Evaluations Avient Corporation IATF 16949:2016 Certificate Of Conformance ANNEX At Below Facilities: Validity of this certificate may be confirmed at www.abs-qe.com/cert_validation.

Avient’s chief operating decision maker uses these financial measures to monitor and evaluate the ongoing performance of Avient and each business segment and to allocate resources. For the same reasons, Avient is unable to address the probable significance of the unavailable information. In addition, operating income before the effect of special items is a component of Avient’s annual and long-term employee incentive plans and is used in debt covenant computations.

Dès la fin de la force majeure, l’exécution reprendra, mais ce retard ne saurait avoir pour effet, sauf entente mutuelle, de prolonger la durée du présent contrat ou d’obliger le vendeur à rattraper les livraisons ou d’obliger l’acheteur à acheter les quantités non livrées.

In addition, the material was engineered for good bonding and adhesion to aluminum closures. The Avient team addressed this challenge with the new formulation, which is optimized for compression set. In addition, the GLS TPE from Avient passed migration, extraction and sensory testing by Nehring Institute as required by food contact regulations (EU) 10/2011 and FDA 177.1210.

The additional low haze levels provide good aesthetics. Contact Avient for specific clearances and use conditions. 100% rPET 3% 4020R in 100% rPET 4% 4020R in 100% rPET 1.844.4AVIENT www.avient.com Copyright © 2021, Avient Corporation. Avient makes no warranties or guarantees respecting suitability of either Avient’s products or the information for your process or end-use application.

Avient’s chief operating decision maker uses these financial measures to monitor and evaluate the ongoing performance of Avient and each business segment and to allocate resources. Avient reflects 2023 adjusted EBITDA guidance of $530M and estimated run-rate CAPEX of $110M. In addition, operating income before the effect of special items is a component of Avient’s annual and long-term employee incentive plans and is used in debt covenant computations.

Patterson, Chairman, President, and Chief Executive Officer, Avient Corporation. The acquisition of Dyneema has been an outstanding addition to our portfolio. In addition, operating income before the effect of special items is a component of Avient's annual incentive plans and is used in debt covenant computations.

Patterson added, “Our Color, Additives and Inks segment also delivered record operating income of $58 million during the fourth quarter. In addition, a recording of the audio will be available for one week, beginning at 12:00 p.m. In addition, operating income before the effect of special items is a component of Avient annual and long-term employee incentive plans and is used in debt covenant computations.

Ashish Khandpur, President and Chief Executive Officer, Avient Corporation. Avient will provide additional details on its 2024 first quarter and 2024 outlook during its webcast scheduled for 8:00 a.m. In addition, operating income before the effect of special items is a component of Avient's annual incentive plans and is used in debt covenant computations.